Steel wire ropes are one of the best choices for elevator applications owing to its two main features: redundancy and detectability as shown below:
A coil of steel elevator wire ropes with wooden shaft
Normally, elevator wire ropes feature parallel strand construction for reducing incidence of abrasion compared with ropes with cross laid construction. Meanwhile, they have a high fatigue bending life and less wear to running sheaves.
Construction:
Depending on the intended needs, two different core types are available: fiber core (FC) and independent wire rope core (IWRC).
Normally, an elevator wire rope is composed of six, eight or nine strands with FC or IWRC as shown in the following pictures:
Standard elevator wire ropes with FC
6 × 19 FC & Warrington
6 × 25 FC & Filler wire
8 × 19 FC & Warrington
8 × 19 FC & Seale
8 × 21 FC & Filler wire
8 × 25 FC & Filler wire
Six strands FC style:
Eight strands FC style:
Elevator wire ropes with IWRC
8 × 19 IWRC & Warrington
9 × 21 IWRC & Filler wire
9 × 25 IWRC & Filler wire
Details: